15.—(1) The Regulator may revise such decisions under this Order as are prescribed in rules under paragraph 3 of Schedule 4.
(2) A decision may be revised if—
(a)the decision was based on an error of fact or law;
(b)except in respect of a determination under article 10(2) to (5) and (8) and article 11(1), a material change in circumstances has occurred since the decision was made.
(3) The Regulator may not revise a decision in order to—
(a)extend the period for which a Final Measure or an Interim Measure is to remain in force;
(b)vary a condition to which, by virtue of a Final Measure or an Interim Measure, a person’s entry in the register is subject.
(4) For the purpose of any rule as to the time allowed for bringing an appeal under article 16 or 17, the decision revised under this article is to be deemed as made on the date on which it is so revised.
(5) Where—
(a)an appeal is brought under article 16 or 17 against a decision or part of a decision, and
(b)the decision, or part of it, is revised under this article before the appeal is determined,
the appeal (or the part of the appeal which relates to the revised part of the decision) will lapse.
(6) A decision prescribed in accordance with paragraph (1) includes such a decision—
(a)as previously revised under this article, and
(b)as amended following an appeal under article 16.